Cosmetic brush



FIG. 1 is a front perspective view of a cosmetic brush of the present invention;

FIG. 2 is a front elevation view of the present invention.

FIG. 3 is a rear elevation view of the present invention.

FIG. 4 is a first side elevation view of the present invention.

FIG. 5 is a second side elevation view of the present invention.

FIG. 6 is a top plan view of the present invention; and,

FIG. 7 is a bottom plan view of the present invention.

The broken lines illustrate features of the article of manufacture that are environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for the cosmetic brush, as shown and described. 